Give early warning to users of form errors before they submit. With client side validations, the user can correct any errors prior to submitting the form.
Wouldn't it be awesome if ActiveRecord didn't make you think about eager loading and it just did the "right" thing by default? With Goldiloader it can!
Infinite scrolling is now a common feature and there are several cases where it is really useful. For instance there are some websites where we simply can’t imagine a good pagination system, like Twitter or even Facebook.